Electric motor



(No Model.) l

W. E. HYER. ELECTRIC MOTOR. No. 391,797.

Patented Oct. 30, 1888,

I r: E!

77 &

WITNESSES:

U ITED STATES PATENT @rrree.

\VALTER E. HYER, OF NEIVBURG, NEIV YORK.

ELECTRIC MOTOR.

SPECIFICATION forming part of Letters Patent No. 391,797, dated October80, 1888.

Application filed October 4, 1887. Serial No. 251,131. (X0 model.)

To aZZ whom, it may concern:

Be it known that I, WALTER E. HYER, a eitizen of the United States,residing at Newburg, in the county ofOrauge and State of New York, haveinvented certain new and useful Improvements in Electric Generators orMotors; and I do hereby declare that the following is a full, clear, andexact description of my invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

My invention relates to electric generators or motors; and it consistsin certain details of construction which tend to make a very compact andefiicicnt machine.

In the accompanying drawings, Figure 1 represents an end elevation ofthe machine; Fig. 2, a side elevation; Fig. 3, a central section in theplane of the shaft; and Fi 4, a central vertical section at right anglesto the shaft.

I use any form of armature, A, in my machine, but prefer the ring. Thearmature is closed at each end by metallic disks 1) p,whieh have bevelededges in order to fit the curved winding on the ring. The shaft isprovided with a shoulder, 1), against which one of the disks rests, andthe opposite end of the shaft is screw-threaded to receive a nut, 19which is screwed up against the other disk and forces all the partstogether, thus forming a convenient and simple means for mounting thearmature on the shaft. The armature is surrounded by two helices, B B,constituting the field of force. This arrangement is adopted in orderthat the full force of the field may be concentrated on the armature.The helices are wound on peculiarly-shaped spools G G of insulatingmaterial. Their cross-seetion is shown in Fig. 4, wherein it will beseen that the bottom of the spoohgroove is on a circle and closelyfollowing the perimeter of the armature. I use two spools and place themin planes parallel to the armature shaft and on each side thereof.

The armature and coils are inclosed in an iron shell, D, formed in twoparts and bolted together through the center by means of bolts (1,passing through ears or lugs d. The shell is four-sided, but hasbrackets extending across its open ends, in which bearings are formedfor the armatureshaft. The commutator is placed vertically against theface of the armature within the shell, and the brushes are mounted inholders E E, secured to or east integral with the shell, as shown inFig. 1. held in place against the sides of the shell by lugs 0 0, whichare cast with the shell. The shaft may extend beyond one of the bearingsand have mounted upon it a driving-pulley, as shown in Fig. 2. Theshell,with its brackets, forms a compact box, within the walls of whichall the parts of the motor are located. The interior of the walls of theshell is cut away on a circle at the poles, as shown at m m, in orderthat the shell may be brought into closer proximity with the armature.

Having now described my invention, what I claim is- I In adynamo-electric machine or motor, an inclosing iron frame, substantiallyas herein described, formed in two parts and having portions of itsinterior cut away to aecon'imo date the armature, two helicesconstituting the field of force, the said helices being wound on spoolsof insulating material, and the lugs 0 0 for holding the helices inplace,whereby a compact apparatus, which maybe easily taken apart andput together for repairs, is secured.

In witness whereof I have signed my name in the presence of twosubscribing witnesses.

\VALTER E. IIYER. \Vitnesses:

Janus Mvnns, HENRY V. S. Hrnns.

The spools are

